The options in this roll-out control the lens distortion of the camera.
Distortion type – Specifies how the distortion is determined.
Quadratic – The default distortion type. It uses a simplified formula that is easier to calculate than the Cubic method. Cubic – Used in some camera tracking programs like SynthEyes, Boujou, etc. If you plan on using one of these programs, this distortion type should be used. Lens file – Uses a .lens file generated with the V-Ray Lens Analysis tool and specified in the Lens file field. Texture – Uses a texture file generated in a third party application (i.e. Nuke) and specified in the distortion map field.
UI Text Box
type
note
Currently Lens fileand Texturedistortion types are type is not supported with V-Ray GPU.
Amount – Specifies the distortion coefficient for the camera lens when the Distortion type is set to either Quadratic or Cubic. A value of 0.0 means no distortion; positive values produce "barrel" distortion, while negative values produce "pillow" distortion. For more information, see The Distortion example below.
Lens file – When Distortion type is set to Lens file, this slot specifies the lens file, containing distortion data.
Map – When Distortion type is set to Texture, this slot specifies the map that contains the distortion data.
